Method of treating and handling products of combustion



F. L. McGAHAN v. K. WALKER, ADMINISTRATRIX.

METHOD OF TREATING AND HANDLING PRODUCTS 0F COMBUSTION.

APPLICATION FiLED JULY 5,19IT.

Patented Nova 29, 1921 4 SHEETS-SHEET 1 -illh 1 I I 1 I a I I I v 1 ll I I I I I I 1 l ||||||l lllllllulllllq F. L. McGAHAN, 05070. V- K. WALKER, ADMINISTRATRIX.

METHOD OF IREATING AND HANDLING PRODUCTS 0F COMBUSTION.

APPLlCATiON FILED JULY 5, 1917. 1,398,734. Patented Nov. 29, 1921.

4 SHEETS-SHEET 2.

F. L- MCG AHANi DE,C D-' v. K; WALKER, ADMINISTRATRIX.

METHOD OF TREATING AND HANDLING PRODUCTS OF COMBUSTION.

.APPLICATION FILED JULY 5,1917.

Patented Nov. 29, 1921-.

Fredeiz'qif Z, fl-Gak an,

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. /7 v w \v i 2%? :2 a i R F L. IVIcGAHAN, DECD. v. K. WALKER, ADMINISTRATRIX.

METHOD OF TREATING AND HANDLING PRODUCTSOF COMBUSTION.

. APPLICATION FILED JULY 5,1911. 1,398,?34 I Patented Nov. 29, 192E I 4 SHEETSSHEET 4.

I 172062-2502"; Frederic/f Z. JWGaizam rn ey,

STATEfi P r Fm FREDERICK L. MOGAHAN, OF LOS ANGELES,

CALIFORNIA; VIOLA. K. WALKER ADMINISTRATRIX 0F SAID FREDERICK L. MOGAHAN, DEOEASED.

Specification of Letters Patent.

Application filed July 5, 1917. Serial No. 178,802.

To allwhomz'tmag concern:

Be it known that I, FREDERICK L. Mo- GAHAN, a citizen of the United States, re siding at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Method of Treating and Handling Products of Combustion, of which the following is a specification.

invention relates to a method of conducting'and consuming products of combus- 1 tion, such as smoke, stack gases and fumes from fuel burning devices throughout a city, or any section thereof. Mymethod is carried out in a system adapted to collect the smoke, stack gases and fumes from fuel burnin the bui dings in a city that are now released into the atmosphere in great clouds through the stacks and chimneys of the various buildings, such as manufacturing plants,'oflice buildings, residences, etc., conduct the products of combustion to a central consuming station where they may be compounded into valuable by-products at such station, thereby obviating'the necessity of the usual stacks and chimneys for conveying the smoke, from the fuel burning devices, and thus absolutely abate the smokenuisance in cities equipped with such system.

It is, therefore, an object of my present invention to conduct the products of combustion, such as smoke, stack gases and fumes directly from fuel burning devices in any number of buildings, in a circuit or district to a suitable station pneumatically, by means of a suitable draft producer, and to continuously deposit or feed the products of combustion into a suitable smoke condensing mechanism, and therein compounding the products of combustion into valuable by-products, such as paint pigment or other byroducts.

ith the above and other objects in view, as will appear hereinafter, reference is had to the accompanying drawings illustrating the steps of the method and one form of an apparatus for carrying the method out, said drawings forming a part of this -specification wherein like characters of reference denote similar views:

Figure 1, 1s a diagrammatic PIBJLXlGW of parts throughout the several my smoke conducting, consuming and com-,

pounding system.

Fig. 2, is a sectional elevation of a builddevices in all or any number of main service pipe 7,

ing equipped with a suitable smoke condenser and vacuum draft. producer and showing the main service pipe leading therefrom.

Fig. 3, is a sectional elevation of a part of two buildings upon opposite sides of a street, clearly showing that the smoke conyeylng service pipe passes under the build lugs and crosses the street in a manner so as not to interfere with the usual sewer, water, or other system.

Fig. 4, is a sectional view of a building showing the installation of the branch conduits, or leads into a building and their relation to the usual Water-and sewer pipes Referring to the accompanying drawings, I have shown in Fig. 2, a suitable buildingl.

Within the building 1, which will be known any distance to a suitable condenser wherein the smoke, stack gases and fumes may be converted into valuable by-products, in paint pigment, or other form.

v. The apparatus or equipment for conducting or conveying the products of combustion from fuel burning devices, located in any number of buildings within the capacity of the central station, comprises a suitable vacuum draft producer 2, adapted to be actuated by means of any suitable power, such for instance, as a motor 3, through the medium of a belt 4', or its equivalent.

Leading from the vacuum draft producer 2, is a plpe 5, having suitable connection, such as at .6, with the main vacuum draft and smoke transmission service pipe, or main 7, leading in as many ways as desirable from pipe 5.

Patented Nov. 29, 1921.

One of the service pipes 7, is shown as leading ofi' to the left, and the other is shown as leading off to the right, and by placing Fig. 3, of the drawings, to the right of Fig. 2, of th drawings, it will be seen that the is adapted to pass through the building 8, and cross the street 9, without interfering with the usual city sewer pipes 10, or the usual city water pipes 11.

This main service pipe 7 it will be further observed, by placing the drawing Fig. 4, to the right of drawing Fig. 3, may continue through building 12, at any convenient place, preferably through the cellar or basement, below the floorlevel, as in the previously mentioned buildings. This main service pipe 7, may extend any suitable distance that the vacuum draft producer 2 may be capable of drawing or sucking the smoke to the central consuming station.

Suitable couplings 13, as shown in Fig. 3, may be employed for connecting the main service pipe at desired intervals." Referring to Figs. 1, 3 and 4, it will be observed, that the various fuel burning devices, which, for convenience have all been designated with the same reference numeral 14, have suitable connection, as at 15, with the main service pipe 7, through the medium of suitable branch pipes, or leads 16, each of which is provided adjacent the fuel burning device with a suitable regulating device, ordraft damper 17.

Hollow catch basins to form relay chambers are used in connection with my system, and one of these basins 18, is preferably connected with the main service pipe 7, in each building A, which buildings are illustrated in dotted lines in the plat plan shown in Fig. 1. One ormore of these basins 18, may also be placed in the station 1. Surrounding each one of the catch basins 18, is a suitable steam pipe 19, leading from a suitable source of steam supply, such as a boiler 20,,shown in the drawings as located at the station 1. The object of the steam pipe is to keep the interior of the basins warm so that the heavier products of combustion, collected therein may be drained off instead of clogging the service pipe 7. The catch basins 18, are adapted to concentrate the heavier particles of tar from smoke, also the catch basins form rela vacuum chambers, such as are commonly ound in pumps forming a means for equalizing the vacuum through the pipe system.

The smoke, stack gases and fumes sucked or conveyed to the station 1, by meansof the vacuum draft producer 2, are delivered directly from the vacuum draft producer to a suitable smoke, gas and fume condensing means 21, which means may be of any suitable construction. The products of combustion are adapted to be deposited in the condensing means from throughout the entire pipe system to be condensed and compounded into valuable by-pr-oducts, such for instance, as products in the form of paint pigment. The by-products in the pain igment, or other form, may be drained 01f rom the condenser 21, and into a suitable container or its equivalent 22. A suitable water pipe 23, is connected with the condenser 21,,for furnishing water thereto, when desired, fro any suitable source.

The reference character 24, designates a suitable pumping means, by means of which water may be pumped into a suitable reservoir or tank 25. Water within the tank 25, may be conveyed to the boiler through the pipe connection 2.6.

The system for carrying out the present method is operated, as is manifest, pneumatically, under a maintained vacuum draft throughout the entire pipe system which may cover many blocks in a system, or, if desired, may cover but a single building, suchfor instance, as a large manufacturing plant, office building, or like place, where it would pay to install the system; The apparatus in the station 1, is automatic to take care of all possible contingencies throughout the entire pipe system. a

As illustrated in dotted lines designated 27, in the plat plan shown in Fig. 1, the main service pipe 7, extends down the alley 28, to which may be connected the branch pipes 14, in any well-known manner. Further, the main service pipe 7, may extend under sidewalks 29, as shown in dotted lines designated 30, and to which the branch pipes 14, may be connected in any well-known and usual manner. And still further, the main service pipe may be laid into the streets 31, if so desired, as is manifest. place or location of the main service pipe or pipes is an immaterial feature, as the branch pipes 14, may be connected thereto from whatever point the fuel burning device, or devices, may be located.

For convenience of illustration only, the main service pipes 7, have been shown in the drawings, in full lines, as running directly under the houses or buildings, which buildings have been illustrated by dotted lines in Fig. 1, and in full lines in the remaining vlews.

The essential feature of my present invention is to conduct, pneumatically, the

smoke, fuel gases and fumes from any number of fuel burning devices to a byroducts manufacturing station, at whichip lace the smoke, stack gases and fumes, may be deposited into suitable condensing mechanism,

for conversion into its various constituents.

My improved method for treating smoke from stoves, furnaces, boilers, etc., it will be readily understood, will absolutely abate' the terrible smoke nuisances of our cities leaving the atmosphere pure and clean.

I claim: V V

1. The method of recovering 'coal tar and other by-prod'ucts from smoke fumes discharged from fuel burning devices, which method consists in conducting the smoke fumes discharged from a plurality of fuel burning devices to a treating station; trapping, concentrating or reduclng certain constituents of the smoke fumes at intervals between the fuel burning devices and the treating station; heating said trapped, concentrated or reduced constituents so that they may pass out of. the system, andffinally subjecting-the remainder of the fumes to treatment at said station to further separate condensable elements from said fumes.

2. The method of recovering coal tar and other by-products from smoke fumes discharged from fuel burning devices, which method consists in conducting the smoke fumes discharged from a plurality of fuel burning-devices to a treating station by suction vacuum draft located at said station; equalizing the vacuum at intervals between the fuel burning devices and the treating station; trapping, concentrating or reducing certain constituents of the smoke fumes at intervals between the fuel burning devices and the treating station; and finally-subjecting the remainderof the fumes to treatment at said station to further separate condensable elements from said fumes.

3. The method of recovering coal tar and other by-products from smoke fumes discharged from fuel burning devices, which 7 method consists in conducting the smoke fumes discharged from a plurality of fuel burning devices (to a treating station by suction vacuum draft located at said station; equalizing the vacuum at intervals between the fuel burning devices and the treating station; trapping, concentrating or reducing certain constituents of the smoke fumes at intervals between the fuel burning devices and the treating station; heating said trapped, concentrated or reduced constituents so that they may pass out of the system, and finally subjecting the remainder of the fumes to treatment at said station to further separate condensable elements from said fumes.

In testimony whereof, I have hereunto signed my name to the specification.

FREDERICK L. McGAHAN. 

